If compared with standard voltage/frequency ratio control, Adv. Vector Control) improves the dynamics and the stability, both when the speed reference is changed

and in relation to the load torque.

Analog Reference

A signal transmitted to the analog inputs 53 or 54, can be voltage or current.

Binary Reference

A signal transmitted to the serial communication port.

Preset Reference

A defined preset reference to be set from -100% to +100% of the reference range. Selection of eight preset references via the digital terminals.

Pulse Reference

A pulse frequency signal transmitted to the digital inputs (terminal 29 or 33).

Ref

MAX

Determines the relationship between the reference input at 100% full scale value (typically 10 V, 20mA) and the resulting reference. The maximum reference value

set in par. F-53 Maximum Reference.

Ref

MIN

Determines the relationship between the reference input at 0% value (typically 0V, 0mA, 4mA) and the resulting reference. The minimum reference value set in

par. F-52 Minimum Reference.

Miscellaneous:

Analog Inputs

The analog inputs are used for controlling various functions of the frequency converter.

There are two types of analog inputs:

Current input, 0-20 mA and 4-20 mA

Voltage input, 0-10 V DC

Voltage input, -10 - +10 V DC.

Analog Outputs

The analog outputs can supply a signal of 0-20 mA, 4-20 mA.

Auto Tuning

The Auto Tune algorithm determines the electrical parameters for the connected motor at standstill.

Brake Resistor

The brake resistor is a module capable of absorbing the brake power generated in regenerative braking. This regenerative braking power increases the intermediate

circuit voltage and a brake chopper ensures that the power is transmitted to the brake resistor.

CT Characteristics

Constant torque characteristics used for all applications such as conveyor belts, displacement pumps and cranes.

Digital Inputs

The digital inputs can be used for controlling various functions of the frequency converter.

Digital Outputs

The frequency converter features two Solid State outputs that can supply a 24 V DC (max. 40 mA) signal.

DSP

Digital Signal Processor.

Electronic Thermal Overload

The Electronic Overload is a thermal load calculation based on present load and time. Its purpose is to estimate the motor temperature.

Hiperface

is a registered trademark by Stegmann.

Intermittent Duty Cycle

An intermittent duty rating refers to a sequence of duty cycles. Each cycle consists of an on-load and an off-load period. The operation can be either periodic duty

or non-periodic duty.

Keypad

The Keypad makes up a complete interface for control and programming of the frequency converter. The Keypad is detachable and can be installed up to 10ft/

3M from the frequency converter, i.e. in a front panel with the optional Remote Keypad Mounting Kit (RMKYPDAC)..

Logic Controller (LC)

The LC is a sequence of user defined actions executed when the associated user defined events are evaluated as true by the Logic Controller. (Parameter group

LC-##).

AF-650 GP Programming Guide

Table of Contents